8 by 8 inches equals exactly 20.32 by 20.32 cm. It forms a square that is a little over 20 cm wide and 20 cm high.
This size is common for square photo prints, small canvases, scrapbook pages, baking pans, and other compact square items. Below, you can see the main conversions and familiar objects that make the size easier to picture.
How Big Is 8 by 8 Inches?
An 8 by 8-inch square measures 8 inches across and 8 inches from top to bottom.
Since 1 inch equals exactly 2.54 cm:
8 × 2.54 = 20.32 cm
So the exact metric size is:
20.32 × 20.32 cm
For a quick mental picture, think of a square roughly 20 cm on each side. A true 20 × 20 cm square is slightly smaller because 8 inches is 20.32 cm.
The width is also close to common paper sizes. A4 paper is about 8.27 inches wide, while US Letter paper is 8.5 inches wide. An 8-inch square is therefore only slightly narrower than either sheet.
8 by 8 Inches in Other Units
Here are the main conversions for an 8 × 8-inch square.
| Unit | Measurement |
|---|---|
| Centimeters | 20.32 × 20.32 cm |
| Millimeters | 203.2 × 203.2 mm |
| Meters | 0.2032 × 0.2032 m |
| Feet | 0.6667 × 0.6667 ft |
The centimeter and millimeter values are exact. The feet value is rounded for easier reading.
10 Everyday Things That Can Be Around 8 by 8 Inches
1. 8 × 8 Photo Print
Square photos are commonly printed in an 8 × 8-inch format. This makes an 8 × 8 photo one of the most direct ways to picture the measurement.
The print itself measures exactly 20.32 × 20.32 cm.
2. Small Square Artist Canvas
Artist canvases and canvas panels are available in an exact 8 × 8-inch size.
A canvas this size is compact enough for a small painting or wall display. Its front surface gives you a clear example of what a 20.32 cm square looks like.
3. Scrapbook Page
Some scrapbook albums use 8 × 8-inch pages.
The page itself can measure exactly 8 inches square, although the album cover may be slightly larger because of the binding and edges.
4. 8-Inch Square Baking Pan
Many square brownie and cake pans are described as 8 × 8-inch pans.
The usable baking surface may measure around 8 inches square, while the full outside dimensions can be slightly larger because of the rim or handles. It is still one of the easiest kitchen objects to use as a size reference.
5. Square Photo in a Picture Frame
An 8 × 8-inch photo fits into frames made for that print size.
The photo gives you the exact target measurement, but the full frame will normally be larger. The visible opening may also be slightly smaller to keep the picture in place.
6. Square Kitchen Trivet
Some kitchen trivets and hot pads are sold in an exact 8 × 8-inch size.
A square trivet of this size is just over 20 cm on each side and gives a useful everyday reference from the kitchen or dining table.
7. Small Cutting Board
Some compact cutting boards are close to 8 × 8 inches.
Cutting boards come in many shapes and sizes, so this is an approximate comparison rather than a standard measurement. A small garnish or cheese-cutting board can be close to the same footprint.
8. Square Cheese Board
Small cheese boards are also available in 8 × 8-inch versions.
A square board of this size measures 20.32 cm on each side and is large enough for a small serving arrangement without taking up much table space.
9. Square Mirror Tile
Some decorative acrylic mirror tiles are sold at exactly 8 × 8 inches.
One of these tiles gives a simple visual example of the measurement because the full face forms a square of the same size.
10. Ceramic or Porcelain Tile
Tiles labeled 8 × 8 inches can also help you picture the size, but their actual measurements may vary.
Some tile sizes are nominal. For example, a tile sold as 8 × 8 inches may measure slightly less, such as around 7.75 × 7.75 inches. Use tile comparisons as a close reference rather than assuming every product is exactly 8 inches square.
Area, Perimeter, and Diagonal of an 8 × 8-Inch Square
The dimensions tell you the width and height, while area tells you how much surface the square covers.
For an 8 × 8-inch square:
Area: 8 × 8 = 64 square inches
That equals:
64 in² = 412.9024 cm²
The perimeter is the total distance around all four sides:
8 + 8 + 8 + 8 = 32 inches
So the perimeter is:
32 inches = 81.28 cm
The diagonal from one corner to the opposite corner is approximately:
11.31 inches = 28.74 cm
These figures can be useful for tiles, printing, frames, crafts, and other square items.
8 × 8 Inches Compared With Nearby Sizes
Here is how an 8-inch square compares with several nearby square measurements.
| Size in Inches | Size in Centimeters |
|---|---|
| 6 × 6 in | 15.24 × 15.24 cm |
| 7 × 7 in | 17.78 × 17.78 cm |
| 8 × 8 in | 20.32 × 20.32 cm |
| 9 × 9 in | 22.86 × 22.86 cm |
| 10 × 10 in | 25.4 × 25.4 cm |
| 12 × 12 in | 30.48 × 30.48 cm |
A 7 × 7-inch square is 2.54 cm shorter on each side than an 8 × 8 square.
A 9 × 9-inch square is 2.54 cm larger on each side.
A 10 × 10-inch square reaches 25.4 cm on each side, making it noticeably larger than the 8 × 8-inch size.
Final Thoughts
8 by 8 inches is exactly 20.32 by 20.32 cm. It forms a compact square covering 64 square inches, or about 412.9 cm².
A small square photo, artist canvas, scrapbook page, or 8-inch baking pan surface can give you a simple idea of what this size looks like in everyday life.
Common Questions
Is 8 by 8 Inches the Same as 20 by 20 CM?
No. 8 × 8 inches equals 20.32 × 20.32 cm, so a 20 × 20 cm square is slightly smaller.
The difference is 0.32 cm, or 3.2 mm, on each side.
How Many Millimeters Is 8 by 8 Inches?
8 by 8 inches equals 203.2 by 203.2 mm.
Since 1 inch equals 25.4 mm, multiplying 8 by 25.4 gives 203.2 mm.
How Many Square Centimeters Is 8 × 8 Inches?
An 8 × 8-inch square has an area of 412.9024 cm².
This is the area of the whole square, not the length of either side.
Is an 8 × 8-Inch Pan the Same as a 20 × 20 CM Pan?
They are very close, but they are not exactly the same.
An 8-inch side equals 20.32 cm, while a 20 cm side is about 7.87 inches. Pan dimensions can also refer to the inside baking area rather than the full outside size.
Will an 8 × 8-Inch Picture Fit a 20 × 20 CM Frame?
Not if the frame opening is exactly 20 × 20 cm.
An 8-inch picture measures 20.32 cm on each side, so it is 3.2 mm larger than 20 cm in both directions. A slightly larger frame or opening would be needed.
Is an 8 × 8 Tile Exactly 8 Inches Square?
Not always. Some tile measurements are nominal rather than exact.
A product sold as an 8 × 8 tile may measure slightly less than 8 inches on each side. Check the manufacturer’s actual dimensions if you need a precise fit.
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